Draftsman&#39;s table.



F. J. LANG.

R 6, 1911. v 1,044,196. Patented N0v.12, 1912.

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wibzesses Qzf F. J. LANG. DRAFTSMAN'S TABLE. APIVLIOA'I'ION FILED MAR. 6,1911.

Patented Nov. 12,1912.

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LUMBIA rumouwn can:

FRANK J. LANG, 0F DES MOINES, IOWA.

DRAFTSMANS TABLE.

Specification of Letters Patent.

Application filed March 6, 1911. Serial No. 612,613.

7b all whom it may concern:

Be it known that I, FRANK J. LANG, a citizen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented a new and useful Draftsmans Table, of which the following is a specification.

The object of my invention is to provide or taken apart and packed in a small space,

and which may be readily, easily and quickly adjusted, folded and taken apart or assembled without the use of tools.

My invention consists in certain details, in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim and illustrated in the accompanying drawings, in which:

Figure 1 shows a perspective view of a table embodying my invention in one position of its adjustment. Fig. 2 shows the same in another position. Fig. 3 shows the same in still another position. Fig. 4: shows a perspective view of a table in another position of its adjustment, and Fig. 5

shows a side elevation of the table in folded position.

In the accompanying drawings, I have used the numerals 10 and 11 to indicate two of the legs of the table, 12 and 13 indicate legs pivotally secured to the legs 10 and 11 respectively at polnts spaced apart and equi-.

distant and 11.

14: indicates a horizontal rod extending through the legs 10, 11, 12 and 13 by which the legs 12 and 13 are pivoted to the legs 10 and 11. One end of said rod has an ordinary head, and the other end is screw threaded and has mounted thereon a thumb screw 15.

Cross braces 16 and 17 are secured to the legs 10 and 11 near their upper and lower ends respectively; the cross braces 16 may be dispensed with if desired, as shown in Fig. 4. Cross braces 18 and 19 are secured to the legs 12 and 13 near their upper and from the upper ends of the legs 10 lower ends respectively. The cross brace 18 may be dispensed with if desired, as shown in Fig. 4. j

Hinged to the cross brace 19 near the center thereof is a member 20 which extends normally horizontally to the central portion of the cross brace 17. The member 20 is longitudinally slotted at its free end to receive a bolt 21 secured to the cross brace 17 The bolt 21 is screw threaded to receive the thumb nut 22 whereby the member '20 may be secured in various positions of its adjustment. By means of the horizontal member 20 the bolt 21 and the thumb nut 22 the lateral separation of the legs 10 and 11 from the legs 12 and 13 may be regulated and the distance of their upper ends from the surface on which the table rests correspondingly increased or diminished.

Extending horizontally through the legs 12 and 13, and spaced apart from the ends thereof is a rod 23 having an ordinary head at one end and being screw threaded at the other end to receive a thumb nut 24:. By the operation of the thumb nut 24: on the rod 23,the legs 12 and 13 may be sprung slightly inward. Extending through the legs 10 and 11 near their upper ends is a cross rod 25, having at one end an ordinary head, and screw threaded at the other end to receive a thumb nut 26. On the inner sides of the portions of the legs 10 and 11 above the cross rod 14 are fixed a plurality of inwardly extending pins or lugs 36 arranged in pairs opposite each other on the respective legs, and designed to receive the slots 27 hereinafter described.,, I I provide a frame for holding the drawing board, having the parallel side members 28 and 29, and the cross pieces 30, 31 and 32 extending from the side member 28 to the side member 29, and secured thereto with their upper surfaces flush with the upper surfaces of the members 28 and 29. Cross members 33 and 34 are securedto the members 28 and 29 on their upper sides at their respective ends, and are designed to receive a drawing board 35 as shown in Figs. 3 and 4. The members 28 and 29 are provided with longitudinal slots 27 extending from end to end on their outer sides designed to receive pins 36 as shown in Fig. 1. Pivotallysecured to the members 28 and 29 on their lower sides and slightly spaced apart from the ends thereof, are members 37 and Patented Nov. 12, 1912.

38 designed to swing from the members 28 and 29 parallel to each other. On the lower sides of the members 37 and 38, I provide a plurality of notches 39 designed to receive the rod 23 or the rod 14 when the frame for the drawing board is in various positions of its adjustment. I preferably secure a cross brace 10 to the members 37 and 38 at a point spaced apart from their ends.

It will thus be seen that my table comprises two separate parts namely the base or standard, composed of the legs 10, 11, 1.2 and 13 and the accompanying mechanism, and the frame for holding the drawing board, and the members 37 and 38 attached thereto.

In practical operation the so called base or standard portion is set up and the member 20 is adjusted in the desired position and secured in said position by tightening the thumb nut 22. The frame for holding the drawing board is then adjusted in the position desired. If theuser desires to adjust the board to the position shown in Fig. 1, the members 28 and 29 are placed between the legs 10 and 11 with the slots 27 receiving the proper pins 36. The members 37 and 38 are then extended downwardly, above and adjacent to the rod 23 with the notches 39 receiving said rod. The table can be firmly secured in this position of its ad justment by tightening the thumb nuts 15 and 2 1. If it is desired to adjust the table as shown in Fig. 3, the frame for receiving the drawing board is placed between the legs 10 and 11 with the notches 27 receiving the upper pair of pins 36. The members 37 and 38 are raised until the proper angle is secured for the drawing board, and the thumb nuts tightened.

To adjust as shown in Fig. 4, the members 37 and 38 are placed above and adjacent to the rod 14 with the notches 39 receiving said rod, and the thumb nut 15 is then tightened. hen the table is in the position shown in Fig. 3 the members 37 and 38 may be disengaged from the rod 23 and the end of the rectangular frame to which they are pivoted may be moved toward the legs 10 and 11 and then upward and the members 37 and 38 again placed in position with the rod 23 and the frame for the drawing board thus secured in vertical position. While in such position an artists easel or a drawing board or the like may be secured in said frame by a suitable clamp. It will be readily seen that the table may be adjusted in a great many other positions, those shown in the drawings, being simply illustrative. The table can be taken apart and the frame for the drawing board folded. The so called stand or base may be folded with the legs 12 and 13 adjacent to the legs 10 and 11, and by removing the rod 23, the legs 12 and 13 will lie just within the legs 10 and 11 when folded. The member 20 is folded to a position parallel with the legs. The whole table in folded position is shown in Fig. 5, the so called standard or base portion being below.

Among the advantages of my table, is the fact that it can be adjusted so that a drawing board placed thereon can be fixed at any angle desired and at various heights. With my table the board can be adjusted for use while the operator is standing or sitting. When in any position of its adjustment, the table is firm and free from vibration. Another advantage lies in its extreme siniplicity, and in the small cost for which it can be made. Still another advantage lies in the fact that the table can be taken apart and folded into a very small space for packing.

My table may be used for drafting purposes, as an easel or as an ordinary writing table.

I claim as my invention:

A draftsmans table comprising two legs, two shorter legs pivoted to said first legs respectively at points below their upper ends, means for securing said shorter legs in various positions of their movement with relation to said first legs, cross rods connecting said first named legs and connecting said shorter legs, a cross rod connecting said first legs near their upper ends screw threaded at one end, a thumb nut on said screw threaded end, a plurality of pins on the inner sides of the upper end of said first legs, arranged in pairs opposite each other, a rectangular frame for holding a drawing board, grooves extending along the outside of said frame, and designed to receive the respective pairs of pins therein, and arms pivoted to one end of said frame and extending downwardly therefrom, constructed with a plurality of notches designed to detachably re ceive said cross rods.

Des Moines, Iowa, January 17, 1911.

FRANK J. LANG.

IVitnesses W. A.Lorrns, W. P. BAIR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

